Proceeding International Conference on Mathematic, Science, Technology, Education and their Applications
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DESIGN AND EFFECTIVENESS OF MATHEMATICS LEARNING PACKAGES BASED ON BILINGUAL METHOD
Full text linkThe specific targets of this research were to produce; (1) Student book (SB), (2) Student Worksheet (SW), (3) Lesson Plan (LP) and to (4) Know their effectiveness of learning packages themselves. The development design of the packages was the modification and adaptation of Four-D model (Thiagarajan, 1974), which is encompassing four phases namely; Define, Design, Develop, and Disseminate. The criteria, used as the references of Bilingual Method, refers to; (1) Indonesian Qualification Framework (IQF), based on President Regulation No. 20/2012, (2) English as a language, in which the packages were made, (3) The examiners are native speakers, (4) The structure of the learning packages, which can lead students’ paradigm, insight, and knowledge to worldwide things. The research finds that: (1) Quantitatively, the learning packages are generally effective to improve students’ achievement, specifically shown by the increase of students’ grade from the pretest to posttest as many as 8.16 in 100-grading scale and, (2) Qualitatively; (a) the development SB emphasizes on three facets namely; the clarity and the structure of the content, the language, and the problem solving, (b) The development of SW emphasizes on three primary aspects namely; the task direction, the order of the task, and the language (c) The development of LP emphasizes on four primary aspects: formulation of basic competency, time allocation, learning material, and its structure
The Development of Basic Chemistry Courses Program Based Problem Solving to Improve Student’s Critical Thinking Skills
Full text linkThis research is a research and development that aims to produce of Basic Chemistry Courses Program to improve Students’ Critical Thinking Skills. This research was used Thiagarajan Research and Development model which consists of four stages: define, design, develop, and disseminate phases. The Basic Chemistry courses program include of syllabus, lesson plan, work sheet, hand book, and critical thinking skills test. Limited trial conducted in science education programe of UNM on 2015/2016. The instrument used to collect validation data consists of: 1) sheet validation learning device (syllabi, lesson plan, textbook, students work sheet, and critical thinking skills test), 2) research observation device sheets, 3) learning management observation sheets, 4) student activity observation sheets, 5) questionnaire responses of students, and 6) critical thinking skills test. The program was validated by expert judgment. The critical thinking skills indicator was identified in this research consists of: 1) basic clarification, 2) the basis for decision, 3) inference, 4) advanced clarification, 5) supposition and integration, and auxiliary abilities, not constitutive of critical thinking. The results showed that the Basic Chemistry courses model based on problem solving to improve the students critical thinking skills is valid category. The limited trial results showed that the learning device that have been developed are in practical category and effective in terms of the results of students' critical thinking skills test.Keywords: Problem Solving, Critical Thinking Skills
The Processing of Coconut Shell Based on Pyrolysis Technology to Produce Reneweable Energy Sources
Full text linkThis study is an experimental study that aims to make coconut shell charcoal briquettes which have reliably characteristics or qualities. This study includes drying of raw materials, composing, grinding and sifting, mixing the adhesive, printing and compression, drying, and determination of characteristics include density, ash content, duration of combustion and calorific value. The result of the study showed that in general there is no significant difference between the characteristics of the briquettes using a starch adhesive with one that use sago starch adhesive. The characteristics of briquettes that were produced are in accordance with the standard in Indonesia, the United States and Japan, except Britain which give very strict standards. Activated charcoal from coconut shell charcoal that was activated with 1M HCl has metal adsopsi power Cr (VI) that is quite high (up to 22.15%).Keywords: briquettes, coconut shells, gluten, calorific value, tapioca, sago, ash, density
ANTIOXIDANT ACTIVITY ASSAY OF SAPPAN WOOD (Caesalpinia sappan L.)
No full textWater boiled sappan wood is a health drink that is often consumed by society at large in Indonesia. This study aims to determine the activities of the wooden cup remedy by using DPPH (1,1 - picrylhydrazyl -difenil -2). Samples were wood sappan cooking water. Test methods used DPPH antioxidant activity as free radical absorbers . The ability of antioxidants measured by a decrease in DPPH absorbance at a wavelength of 513.1 nm . Samples wood sappan made with a concentration of 1 %, 2 %, 3%, 4%, 5% and 6% with the addition of DPPH by using a UV -Visible spectrophotometer . The results showed that the samples of the wood sappan 6 % have the highest antioxidant activity at a wavelength of 513.1 nm . It is concluded that Fern stems isolates have the ability to reduce free radical DPPH. The ability to reduce free radical DPPH sappan wood is greater than the ability of quercetin. IC50 value of the sappan wood is 0.047 mg / mL greater than quercetin is 5054 mg / mL. Keywords : Sappan wood, DPPH, antioxidan
PLANTS IN A SQUARE: EXPLORE PLANTS DESCRIPTION WITH QR CODE FEATURE
Full text linkIndonesia especially South Sulawesi contained the diversity of plant species. The number of species that exist it is necessary to identify each type. To facilitate the identification process, conducted the research of exploration of plant's description by QR Code feature. QR Code or quick response code, which is a type of two-dimensional bar code contains information that facilitates generating and reading (encoding and decoding) of information on a smartphone. The purpose of this research to facilitate describing of the plant with the QR Code features. This research located in Tope Jawa Coast, Takalar, South Sulawesi, with a descriptive study using survey and identification methods. The results of the study revealed 25 species of plants that have been identified and loaded into a QR Code that can be scanned by smartphone.Key words: Exploration, descriptions of plants, QR Cod
A Simplified Model of Aspergillus niger Growth using Nephrolepis biserrata leaves for Exo-polygalacturonase Production
Full text linkA simple model to describe the growth of Aspergillus niger during solid state fermentation using Nephrolepis biserrata leaves is a substrate for the production of exo-poligalacturonase for 192 hours. The rate of kinetics growth of Aspergillus niger and the use of glucose as substrate using a Model Monod has shown that the maximum utilization of glucose 0.32 g/L of Aspergillus niger biomass of 0.496 mg/gdsf of glucose uptake 5.96 g/L to 0.32 g/L at 24 hours up to 120 hours of incubation. Through a linear regression equation diperolehinilai μmax = 0.043 per hour and Ks = 0.473 g/L for 120 hours of incubation. The values of kinetic parameters and the amount of biomass has a significant relationship with R2 equal to 0.801 and exo-polygalacturonase optimum activity at 54.64 U/g. Data gathered for the kinetic parameters during evaluation of the production of exo-polygalacturonase in SSF by Aspergillus niger, a value YX/S is 0.149 mg/g by using glucose from the medium. The values for the kinetic coefficient of exo-polygalacturonase income is YE/S = 16.43 U / g, YE/X = 114.4 U/mg and kinetic constants were qE = 4.79 U/(mg.h) and qS = 0.289 g/(mg.h)
Teaching Material Development with Challenge Based Learning (CBL) Basis to Improve Critical Thinking Ability on Human Reproduction System Material of Class XI IPA 4 Students at MAN Pinrang
Full text linkThe study aims at (1) developing teaching material based on Challenge Based Learning (CBL) basis in Human Reproduction System material, (2) Obtaining data of validity and effectiveness of teaching material with CBL basis on Reproduction System material, and (3) describing students critical thinking ability improvement after teaching by using teaching material based on CBL. The study is research and development. The study was conducted at MAN Pinrang in March 2016 to June 2016. The subject of the study was the students of class XII IPA 4 at MAN Pinrang of academic year 2015/2016 which consisted of 38 students. The development design referred to 4D development model by Thiagarajan consist of 4 stages, namely defining, design, development, dissemination with the teaching product in forms of student`s book with CBL basis and student`s work sheet with CBL basis. The result of the study reveal that (1) the teaching material with CBL basis developed has met valid criteria with the total mean score for all assessment indicators V=100%. The validity of teaching material is stated at the level of strong relevancy with content validity coefficient more than 0.75 or V>75% from the ideal score 100%, (2) the teaching material with CBL basis has met effective criteria based on the result of students` response on students` book with the mean of positive response is 97.37% and the response on the student`s work sheet with the mean of positive response is 91.58%; (3) the critical thinking ability of grade XI IPA 4 students at MAN Pinrang after being taught by employing teaching material with CBL basis has improved by 18.34 with the mean score 61.06 in cycle I and 75.39 in cycle II.Keywords: Challenge Based Learning, Critical Thinking Ability
The Influence Of Problem Based Learning Model Toward Motivation and Physics Learning Outcomes Of Students SMA Negeri 1 Parangloe Gowa Regency
Full text linkThe Influence of Problem Based Learning Model Toward Motivation and Physics Learning Outcomes of Students SMA Negeri 1 Parangloe Gowa Regency. This research is true experimental design, with posstest only control group design that aim to determine how much motivation and learning outcomes of physics students of class XI IPA 3 as an experimental class that were tought using problem based learning model and class XI IPA 2 is a control class that were tought conventional learning model, as well as to determine whether there were signification differences in motivation and learning outcomes of physics students. Data were analyzed with descriptive and inferential statistics. Based on the results of the descriptive analisis showed that scores of motivation and learning outcomes of students who were taught the problem based learning model is at the high category. While taught using conventional learning models is at a low category. Analyses showed that it can be concluded that there are significant differences on motivation and learning outcomes of students who taught physics by using model problem based learning with students who are taught by using conventional learning model
The Influence of Experiment Methods on Science Process Skill and Cognitive Learning Outcomes of the X Grade Students of MIA SMAN 1 Soppeng Riaja 2015/2016
Full text linkThis study aims to : (1) describe the level of science process skills of group was taught using the experimental method; (2) describe the level of science process skills of group that taught conventionally; (3) describe the level of physics learning outcomes of group taught using the experimental method; (4) described level of physics learning outcomes of group was taught by conventional method; (5) to analyze whether there are differences in science process skills between the groups taught by using experimental methods and the group that was taught in conventional; (6) to analyze whether there are differences in learning outcomes between the groups taught by using experimental methods and taught conventionally. This is a true experimental research with posttests only control group design. The population in this study was all students of class X MIA consisted of four classes. The study sample consisted of two classes of one experimental class taught by experimental methods and one class taught by conventional methods (demonstration method). Sampling was chosen randomly so that the class X MIA 1 as an experimental class and the class X MIA 2 as control class. The results showed that (1) science process skills of students who are taught by experimental method are on high category; (2) science process skills of students who are taught by applying the conventional method (demonstration) are on fair categories; (3) cognitive learning outcomes of students who are taught through experimental method are on high category; (4) cognitive achievement of student taught by applying the conventional method (demonstration) are on fair categories; (5) there is a difference between the science process skills of group who are taught using experimental methods and group that are taught conventionally; (6) there are differences in learning outcomes between the group taught by using experimental methods and group that are taught conventionally.Keywords: Experimental Method, Science Process Skills, Cognitive Learning Outcome
Exploring the Correlation between Metacognitive Skills and Retention of Students in Different Learning Strategies in Biology Classroom
Full text linkMetacognitive skills were believed to contribute on vary of cognitive activity of students, including the retention. This research was conducted during one semester in four different classes that were taught biology by using four different learning strategies: Problem-based Learning (PBL), Reading Questioning and Answering (RQA), PBL integrated with RQA (PBLRQA), and multi-strategy. This research explored the correlation between metacognitive skills with retention of students in the four different strategies, and compared the four regression lines whether or not they are parallel. The research results showed that the correlations between metacognitive skills and students’ retention were significant. The results of the analysis of variance related to the regression equation in the four different strategies were parallel and not coincide and the regression line of RQA strategy was at the highest position. It indicated that this strategy has the potency to empower metacognitive skills and simultaneously maintained the students’ retention. It would be important information for lecturers that they should empower the metacognitive skills through the appropriate learning strategies because it was believed could affected the students’ retention.Keywords: metacognitive skills, retention, problem-based learning, reading questioning answering, regression line